| 摘要 |
PROBLEM TO BE SOLVED: To suppress outflowing of high temperature air in a heat insulating box through a yarn lead-out port.SOLUTION: A heat insulating box 16 accommodates five godet rollers 11-15 therein. A yarn lead-in port 16a and a yarn lead-out port 16b are formed on a right side wall part 30d of the heat insulating box 16. Inside the heat insulating box 16, an air flow is generated along an inner surface of wall parts 30 in association with the rotation of the five godet rollers 11-15. The inner surface of an upper wall part 30a among the wall parts 30 constituting the heat insulating box 16 along which an air flow flows toward the yarn lead-out port 16b is provided with a first flow straightening part 42 for directing the air flow inward. |
